Ⅰ.单句语法填空
1．Well, we ________ (find) the bones of tigers and bears in the caves, and we think these were their most dangerous enemies.
2．He ________ (write) a novel, which will be finished next month.
3．The little boy is dirty all over because he ________ (play) in the mud all the morning.
4．He ________ (lie) in bed for two weeks because of his broken leg.
5．You know, I ________ (look) for a job for three months，and this is my first formal interview.
